Catholic Church. National Conference of Catholic Bishops. (1987). Norms for priests and their third age: November 18, 1987. Office of Publishing and Promotion Services, United States Catholic Conference.

Catholic Church. National Conference of Catholic Bishops. Norms for Priests and Their Third Age: November 18, 1987. Washington, D.C.: Office of Publishing and Promotion Services, United States Catholic Conference, 1987.

Catholic Church. National Conference of Catholic Bishops. Norms for Priests and Their Third Age: November 18, 1987. Office of Publishing and Promotion Services, United States Catholic Conference, 1987.